fix: wrong node-version

Author: to-kn

.changeset/poor-suns-hammer.md

@@ -2,8 +2,8 @@
 '@as-integrations/koa': major
 ---
 
-Upgrade to koa v3, @koa/bodyparser and node 22
-Since koa v3 only supports node >= 22, we do it too.
+Upgrade to koa v3 use @koa/bodyparser and node 18 as a minimum
+Since koa v3 only supports node >= 18, we do it too.
 Making it compatible with koa-bodyparser and @koa/bodyparser (which is the more up-to-date version)
 
 Adding the call to next() as in https://github.com/apollo-server-integrations/apollo-server-integration-koa/pull/232

package.json

@@ -66,7 +66,7 @@
     "koa": "^3.0.0"
   },
   "engines": {
-    "node": ">=22.0"
+    "node": ">=18.0"
   },
   "volta": {
     "node": "20.19.0",